Duplex Steel 31803 Fasteners
What are Duplex Steel 31803 Fasteners?
Duplex Steel 31803 Fasteners, including bolts, screws, and threaded rods, offer exceptional performance in demanding environments. Crafted from a specialized stainless steel with a unique duplex microstructure, these fasteners exhibit a remarkable combination of strength, corrosion resistance, and weldability.
Key Features of Duplex Steel 31803 Fasteners
- Exceptional Strength: Duplex 31803 Fasteners possess significantly higher strength compared to traditional austenitic stainless steel fasteners, making them ideal for applications where structural integrity is critical.
- Superior Corrosion Resistance: These fasteners demonstrate exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, even in aggressive environments containing chlorides, acids, and alkalis.
- Excellent Weldability: Duplex UNS S31803 offers excellent weldability, facilitating easy fabrication and assembly in various applications.
- High Toughness: These fasteners exhibit high toughness and ductility, making them suitable for applications requiring impact resistance.
| Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards |
|---|---|
| Threads: | BSF, UNF METRIC, UNC, BSW or as required |
| Standard | ANSI – American National Standards Institute
|
| Fasteners/ Bolts Size | M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160 |
| Length | 3 mm to 200 mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe etc |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Finishing | Zinc white, (yellow, black, blue), black oxide,
Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating |
| UNS S31803 Round Bar source to produce fasteners | JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc. |
| Form | Duplex Steel UNS S31803 Square, Hex, Threading as per Gauge, Round Etc. |
| Process of Production | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Surface Coating |
|
| Packing | IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request |
31803 Fasteners Equivalent Grade
Duplex |
Common Name |
Related Specifications |
||
|---|---|---|---|---|
European |
UNS |
ASTM/ASME |
||
SAF 2205 ® |
1.4462 |
S31803 |
F51 |
|
Duplex Steel 31803 Fasteners Chemical Composition
Grade |
Tensile Strength (MPa) min |
Elongation (% in 50mm) |
Yield Strength 0.2% Proof (MPa) min |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
UNS-S 31803 |
650-880 |
25 |
448 |
Duplex Steel 31803 Fasteners Mechanical Properties
| UNS Designation | Type | Condition | Tensile Strength, min, ksi [MPa] | Yield Strength,A min, ksi [MPa] | Elongation in 2 in. [50 mm] or 4D, min, % | Reduction of Area, min, %B,C | Brinell Hardness, max |
| S31803 | . . . | annealed | 90 [620] | 65 [450] | 25 | . . . | 290 |
APPLICATION
Duplex Steel and Engineering Company is a leading supplier of high-quality Duplex Steel 31803 Fasteners. We offer a wide range of sizes and specifications to meet your specific project requirements. Our commitment to quality and customer satisfaction ensures that you receive products that exceed your expectations.
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